Azure Kinect Developer Kit - The new kinect, a peripheral with complex AI sensors
TrackIR - TrackIR adds depth to the PC gaming experience by enabling players to take control of the in-game view.
Eyeware Beam - Turn your phone into an eye & head tracker!
VRChat - Create and play in virtual worlds with others
FaceTrackNoIR - FaceTrackNoIR is only available for Windows-based PC's (sorry, we have to start somewhere) and...
Oculus Medium - Sculpt, model and paint in virtual reality on a 3D canvas.